What domain names are supported by wildcard certificates?
Tencent Cloud SSL certificates can be wildcard certificates. A wildcard certificate can secure a single server domain name and all the sub-domain names of the same level.
A wildcard certificate covers all sub-domain names of the same level. For example, both
*.tencent.com and *.cloud.tencent.com are wildcard domain names.Currently, wildcard certificates only support wildcard domain names and do not support regular domain names (non-wildcard domain names). If you need a certificate that can include multiple wildcard domain names, it is recommended to purchase a multi-domain wildcard type SSL certificate.
What are the rules for matching a wildcard certificate with a domain name?
A wildcard certificate can only match sub-domains of the same level and cannot match across levels. For instance, the third-level wildcard domain
*.tencent.com does not support the fourth-level domain www.ssl.tencent.com.Why can't I use file verification when applying for wildcard certificates?
From December 1, 2021, file validation supports only issuing the SSL certificate for the current validated domain, but not wildcard SSL certificates as well as its subdomains. For more information, please see Domain Validation Policy Update.